Find probability that average weekly postage expense

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Reference no: EM13125929

What is the approximate probability that the average weekly postage expense for the past 52 weeks will exceed the budgeted amount of $ 400? ( b) What information would you need to determine the probabil-ity that postage for one particular week will exceed $ 400? Why wasn't this information required for ( a)?

Reference no: EM13125929

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